Manufacture of elements for batteries or electrolytic apparatus.



No. 889,815. PATENTED JAN. 1, 1907.

v i F. A. DECKER.

MANUFACTURE OF ELEMENTS FOR BATTERIES 'OR ELECTROLYTIC APPARATUS.

APPLICATION FILED MAY 9, 1904;

. 3 SHEETS-SHEET 1.

' WITNESSES E I u 7 $1M. 12 15 11 Br A A TTUBNEY.

No. 839,815. PATENTED JAN. 1, 1907;

P. A. DECKER. v

MANUFACTURE OF ELEMENTS FOR BATTERIES 0R ELECTROLYTIC APPARATUS.

APPLIUATION FILED MAY 9, 1904.

WITNESSES: [NYE/{TOR I I B! A TTORNEV.

No. 839,815. PATBNTED JAN. 1, 1907.

F. A. DECKER.

MANUFACTURE OF ELEMENTS FOR BATTERIES OR ELECTROLYTIC APPARATUS APPLICATION FILED MAY 9, 1904.

3 SHEETSSHEBT 3.

1a WITNESSES. lNl/ENTUR K Qy fl X9 MM i Wu H U E t ATTU/ZNEK I citizen ofthe To all whom it mag concern:

nnrrnn srA'pns ,PATENT, ornion.

FRANK A.- DECKER, OF PHILADELPHIA,

PENNSYLVANIA, ASSIGNOR, BY

MESNE ASSIGNMENTS, TO DECKER ELECTRICAL MANUFACTURING COMPANY, OF WJLMPNGTON, DELAWARE.

Be it known that I, FRANK AfDEOK t-Qa United States, residing at-Phil adelphia, county of Philadelphia, and State of Pennsylvania, have invented certain Improvements in theManufacture of Elements for Batteries or Electrolytic Apparatus, of

which the following isa specification.

This invention has as its object the pm duction of improved parts .suitable for use as electrodes, diaphragms, or compartments having such slight thickness as to producelow resistance and permit high electrical efliciencyto be obtained. In the manufacture of electrodes-,ydia' phragms, compartments, and the. like by molding and baking mineralinatt'er or extruding molten mineral matter (as clay or carbon) these operations, when producin them in final form of the thinness require for obtaining the desired high efliciency and low resistance have been attended with cracking and war )ing to such an extent that the desired resu ts could notvv be obtained thereby.

In the present improvements the material which it is desired to use is extruded or mold vid ing ated upon.

ed and baked and then separated orreduced' to such form as .isdesiredin. the finished product,the original shape being of such. character as" to stand up against destruction .or injury in the operations'of extruding or The final product thus obtained ma readily be madeto comprise a' "form quite 't in ,and of large superficial area Within comparatively confined borders, prohigh efficiency andlow resistance, while avoiding the difficulties -obtainingfin molding and baking thesame products singly or in final form. The initial forms' may be produced by means of niolds'or dies by compression or extrusion; The'reductions may be effected by subjecting the original form to grinding, sandblasting, splitting, or like operations suitable for. obtaining the desired final form or forms from theorig-inals-opcn In the accompanying drawings,-illustrating my improvements, Figure 1. isa perspective view,.and Fig. 2 is a sectional view, on the line 2 2 oiFig. 1, representing an initial term. Fig. 3 is aperspective view, and Fig.

\ 4 is a sectional view, taken on the line-4 4 of Specification of Letters Patent. Application filed May 9, i904. Serial No. 206,981;

MANUFACTURE OF ELEMENTS; FOR'BATTiZRlES 0R ELECTROLYTIC APPARATUS.

' Patentedjan. 1.1907.

- samet'o or dividing it on the line 3 3.

is a per's ective view, and Fig. 6 is a sectional view, ta en'on the line 6 '6 of Fig. 5, representing a second initial form. perspective view, and Fig. view, taken on the line 8 8 of Fig. .7, representing a cup or compartment obtained from the form shown in Fi s. 5 and 6 by reducing the same to or dividmg itonthe lines 7 7.

Fig.\1-1..1s a perspective View, and-Fig. 12 is a sectional view, taken on the line 12 12 of Fi s itting the form. shown in Figs. 9-and- 10 on the line 7 7. Fig. 13 is a perspective view of a perspective view of a cupor compartment produced therefrom by cutting to or through the lines 14 14. Fig; 15 is a perspectiveview by cutting to or through the lines 1616. 17 isa erspective new of asixth'initial' cup or compartment produced therefrom by cuttin to orithrough, the lines 18 1'8.

may consist of a body 1, having the'flanges 2 thereon and thetubular holes the walls 4 of the holes being curved and may be as thin as required in the final product or ofgreater, thickness to be 'cutdown to the thin section desired. By cutting down to or s litting 0n the lines 3 3 the form shown in igs. 3 and/1 may be produced, comprising a corrugated or furrowed plate having the bordering flanges 2.and the walls 4. .This plate, if desired, may be further reduced by removing material from the'convex surfaces 6, the ribs or the concave surfaces 8 and 9. Such a plate, Whether used alone or as part of an envelop, means for preventing a juxtaposed element from stopping the circulationof fluid in contact with its surface. I

As shown in Figs. 5 and 6, the initial form -comprises the end walls 10 and the side walls 11, forming the compartment 12, the side walls having the tubular holes 13'therein pro- ;Fig. 7 s a 8xis a sectional Fig. 9 isa perspective view, and Fig. 10 is a sectionalview, taken on the line '10 10 of 'FigLXQ, representing a third initial form.

11, representing a pla-te produced by 'a fourth initial form, and Fig. 14 represents form, and *ig. 18 'isa perspective view of a Fig. 3, representing a plate obtained-from the, A form shown in Figs." land 2 by reducing the Fig. 5

of a fifth initial form, and Fig. 16 is a perspective View of a plate produced therefrom Ass own in Figs. 1 and 2, the initial form' has in its irregular configuration fry Sta vided with the thin curved interior walls 14,

This form is cut iines 7 7 to produce the envelop orcompartment shown in Figs. 7 and 8, ha ing the end walls 10 and the corrugated -or furrowed side walls 14.

As shown in Figs. 9 and 10, the initial form may comprise thefend walls 17 and the side walls 18, the latter being joined by the septa 19 and having the exterior ribs 20 thereon. By splitting thisforin on the lines '7 7- the plate shown in Figs. 11 and 1 2 is produced, comprising the flange borders 17 and the plate 18, having the spacing-ribs 19 and 20, forming a furrowed'diaphragm;

As shown in Fig, 13, the initial form com prises the end ,walls 21, the side walls 22, the plates 23, the compartment 24 within the plates and end walls, the septa 25, joining the plates and the s V on the plate within the compartment. By cutting down 't'o or splitting on the lines 14 14 the envelop or compartn'ient shown in 14} is produced, havingthe ends21 and the plates 23, provided with thespacing rib's 26 and '26, forming furrowed sides therefor.

As shown in Fig. 15, the initial form cotnprises a plate having the parallel rows 'of holes 27 tl'ierethrough, the holes of the respec tive rows heing staggered with respect 'to each other and'separated by -.t'he septa 281 The final form is producedby cutting down 'to or on-the lines 16 16 to produce a corru:

gated or furro'wedplate 2 F, having theconcavities 27" in its opposite ,walls staggered with respectto each other, as shown in Fig. 16:

As shown in Fig. 17 the original form com prises a block liavingthe compartments'29 and the rows of he being separated from 18, produced'from the initial form by cutting on the lines l'S 18, comprises-the envelop or compartment 29, having end walls 32 and furrowed or corrugated sidewalls 31, the conoavities on the opposite facesthereof be ing staggered with respectto each other. It will be understood that be made of amorphous carbon or graphlte to .act as electrodes and separators in primary to act as 'separaters for the electrodes or solutions in prithe parts may cells or ofporous earthenware mary and secondary batteries and electrolytic apparatus,

down to or divided onthe 'dewalls, and the ribs- 26.

es 30 therein, the holes' V the compartments by The final form shown in- Fig] ssasie j The term furrowed is to be understood as designating any surface having a Wavy, cdrrugated, or ribbed conformation, the term plate as designating either a single electrode or separator or a velop, compartment, or cup, and the expres- I sion hollow body? as designating a body having one or more compartments or holes l, therein; v v

I It isito be understood that by reason of the i thin character" required in the parts to be formed it .is important that the body should be-molded and baked with the walls joined andbraced intermediately of their edges.

drawings, as in Fig. 9, the body of the molded \For example, in the several figures of the provided with side walls, as 18, joined by the *septa'l which brace such Walls at places inpart of an en termcdiate of their edges, the same charac v te ristic idea being found in the forms shown in'Figs. 1,5, 13, 15, and 17.

Having described my invention, I claim 7 1. -Themanufacture' of parts'for batteries I forn'iing and baking a holes therein lying in parallel planes, and thensplitting said body on the line of one or more of said. planes, substantially as specified.

2. The manufacture 'of parts for batteries or electrolytic apparatus which consists in forming and baking a body having parallel holes therethrough, and then splitting said body'thro'ugh said holes, substantially as specified '3. The'manufacture of parts for batteries and electrolytic apparatus which consistsin forming and balring a therein,- and then separating therefrom a per- \orielectrolytic apparatus which consists in tion of saidbody so as to produce a furrowed j plate or plates. I j 4; Themanufactu re of parts-for batteries and electrolytic apparatus which consists in forming and'baking'a body with holes there in, 'then'separating therefrom a ortion' so as to produce a reinforced furrowed plate.

'. UTLEY E. CRANE, Jr.

hollow body having body having holes.

. rec .Tntestimony whereof I have hereunto set 

